Thaum punching thiab flanging nyob rau hauvhlau stamping, qhov deformation cheeb tsam yog yeej txwv nyob rau hauv lub fillet ntawm cov tuag.Nyob rau hauv qhov kev txiav txim ntawm unidirectional los yog bidirectional tensile kev nyuaj siab, tangential elongation deformation yog ntau dua li radial compression deformation, ua rau cov khoom thickness txo.Lub qhov ncauj ntawm ntsug ntug ntawm lub qhov flanging yog thinned mus rau qhov siab tshaj plaws.Thaum lub thickness yog thinned ntau dhau lawm thiab cov khoom elongation ntau tshaj qhov txwv elongation ntawm cov khoom, lub thiaj li hu ua p fracture tshwm sim (qhov tawg tshwm sim los ntawm ntau elongation thiab tsis txaus plasticity ntawm cov khoom yog hu ua quab yuam anus fracture; lub tawg los ntawm ntau dhau lawm. tsim lub zog thiab tsis txaus lub zog ntawm cov khoom yog hu ua tawg).Thaum xuas nrig ntaus thiab flanging, qhov me me ntawm flanging coefficient K, qhov ntau dua qhov deformation, thiab ntau dua qhov thickness txo ntawm ntsug ntug qhov ncauj, qhov yooj yim dua nws yog tawg.Yog li ntawd, lub thickness txo ntawm ntsug ntug qhov ncauj tsis tuaj yeem tsis quav ntsej thaum flanging.
1.Cracks tshwm sim ntawm qhov ncig ntawm lub qhov punched qhov qhib.Qhov laj thawj tseem ceeb yog qhov punched ua ntej qhov seem muaj kua muag nto thiab burr, qhov twg muaj kev ntxhov siab concentration point.Thaum lub sij hawm lub qhov tig txheej txheem, lub plasticity ntawm qhov chaw no tsis zoo thiab nws yog ib qho yooj yim rau tawg.Kev siv cov ntaub ntawv zoo elongation tuaj yeem ua rau kom qhov deformation degree ntawm qhov punching qhov flanging thiab txo lub qhov flanging cracking.Yog tias qhov tsim tau tso cai, lub qhov taub ua ntej yuav tsum tau nce ntau npaum li qhov ua tau kom txo tau qhov deformation ntawm lub qhov, uas yuav pab tau kom txo tau qhov tawg ntawm lub qhov.Yog tias tus qauv tso cai, cov ntaub ntawv nyias nyias yuav tsum siv kom deb li deb tau kom txo qhov tshwm sim ua ntej ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim ntawm qhov tshwm sim.Thaum tsim cov pwm, nws yog qhov zoo dua los txais yuav cov duab parabolic lossis spherical rau flanging punch, uas tuaj yeem ua rau kom muaj qhov tso cai deformation ntawm cov ntaub ntawv hauv zos thiab txo qhov tawg.Thaum lub sij hawm stamping, cov kev taw qhia ntawm kev xuas nrig ntaus thiab flanging tuaj yeem cuam tshuam rau kev xuas nrig ntaus thiab ua ntej drilling, kom cov burr nyob rau hauv lub flanging, uas tuaj yeem txo qhov tawg.
2. Tom qab lub stamping thiab flanging qhov raug kaw, lub qhov shrinks, lub flange tsis ntsug, thiab lub qhov taub yuav me me, uas yuav ua rau nws nyuaj rau ntsia hlau thaum lub sij hawm sib dhos.Lub ntsiab yog vim li cas rau necking yog cov khoom springback, thiab qhov sib txawv z / 2 ntawm punch thiab tuag yog loj heev.Cov khoom siv nrog kev ua tau zoo yog siv hauv kev tsim khoom, nrog me me rebound, uas tuaj yeem txhim kho qhov teeb meem ntawm caj dab.Thaum tsim cov tuag, xaiv qhov tsim nyog tshem tawm ntawm tus txiv neej thiab poj niam tuag tuaj yeem ua kom ntseeg tau tias flange flange yog ntsug.Lub clearance ntawm lub punch thiab tuag feem ntau yog me ntsis tsawg dua cov khoom thickness.
3. Qhov siab tsis txaus ntawm flange flange ncaj qha txo qhov ntev ntawm cov ntsia hlau thiab lub qhov thiab cuam tshuam rau kev ntseeg siab ntawm cov ntsia hlau txuas.Cov yam tseem ceeb uas cuam tshuam rau flange qhov siab ntawm stamping flanging muaj xws li ntau dhau lub qhov taub txoj kab uas hla, thiab lwm yam. Xaiv lub qhov me me txoj kab uas hla rau kev xuas nrig ntaus ua ntej kom qhov siab ntawm qhov tig.Thaum lub qhov taub ntawm lub qhov taub tsis tuaj yeem txo qis, qhov thinning thiab flanging tuaj yeem raug coj los ua kom cov phab ntsa thinner kom qhov siab ntawm flange flange.
4. Lub hauv paus R ntawm kev xuas nrig ntaus thiab flanging yog loj heev.Tom qab flanging, lub hauv paus R yog loj heev, uas yuav ua rau ib qho tseem ceeb ntawm cov hauv paus hniav tsis muaj kev sib cuag nrog cov ntsia hlau thaum lub sij hawm sib dhos, txo cov ntsia hlau ntev ntawm cov ntsia hlau thiab lub qhov, thiab txo qhov kev cia siab ntawm cov ntsia hlau txuas.Lub hauv paus R ntawm flanging qhov yog loj heev, uas muaj feem xyuam rau cov khoom thickness thiab nkag fillet ntawm stamping flanging tuag.Lub thicker cov khoom yog, qhov loj dua lub hauv paus R yuav;Qhov loj dua qhov fillet ntawm qhov nkag ntawm qhov tuag, qhov loj dua R ntawm lub hauv paus ntawm lub qhov flanging.Txhawm rau txo cov hauv paus R ntawm flanging qhov, cov ntaub ntawv nyias yuav tsum tau xaiv kom deb li deb tau.Thaum tsim cov tuag, me me fillets ntawm qhov nkag ntawm tus poj niam tuag yuav tsum tau tsim.Thaum siv cov ntaub ntawv tuab dua lossis cov fillets ntawm qhov nkag ntawm tus poj niam tuag tsawg dua 2 npaug ntawm cov khoom tuab, lub flanging punch yuav tsum tau tsim los ua kom lub xub pwg nyom nrog shaping, thiab lub hauv paus R yuav tsum zoo li tus kawg ntawm lub stamping. stroke, los yog cov txheej txheem shaping yuav tsum tau ntxiv nyias.
5. Thaum xuas nrig ntaus thiab flanging qhov tau ua tiav los ntawm kev xuas nrig ntaus thiab flanging cov ntaub ntawv pov tseg, tsis muaj cov qauv sib txuam ntawm cov concave tuag thaum lub sij hawm xuas nrig ntaus, thiab cov ntaub ntawv raug rub tawm.Kev xuas nrig ntaus cov ntaub ntawv pov tseg yuav random ua raws li ntug ntawm lub qhov, ua rau cov khoom siv khib nyiab ntau zaus.Kev co ntawm cov ntaub ntawv pov tseg thaum khaws thiab tuav yog ib qho yooj yim tawg rau ntawm qhov chaw ua hauj lwm ntawm qhov tuag los yog ib feem, ua rau indentation defects nyob rau saum npoo ntawm ib feem, uas yuav tsum tau kho manually, nws yog ib qho nyuaj rau ua tau raws li qhov yuav tsum tau rau sab nraud. cov khoom yuav tsum tau kho, thiab lawv tsuas yog muab pov tseg, nkim lub zog thiab cov khoom siv;Cov ntaub ntawv pov tseg ntawm flanging qhov, yog tias coj mus rau lub rooj sib txoos dav dav, yooj yim rau kev txiav cov neeg ua haujlwm thiab cuam tshuam rau cov ntsia hlau;Rau cov khoom siv hluav taws xob, xws li flanging qhov khib nyiab, nws yog ib qho yooj yim uas yuav ua rau luv luv Circuit Court thaum nws poob rau hauv cov khoom siv hluav taws xob thaum ntsia hlau, uas yuav ua rau muaj teeb meem kev nyab xeeb ntawm hluav taws xob.
Post lub sij hawm: Dec-17-2022